Being able to tell different sounds apart is called

• sound amplification
• sound discrimination
• vibration
• frequency

If there are two forces going in the same direction how would you find the net force?

• Subtract
• Add
• Neither
• Multiply

Tags

NGSS.MS-PS2-2

How can you get these pistons to balance?

• Put equal masses on both sides
• Put heavier mass on the left piston
• They will never balance because one is fatter than the other
• Put a heavier mass on the right piston

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What type of energy is in this picture?

• Kinetic
• Potential
• Chemical
• Sound

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

How would you write 0.0005 in scientific notation?

• 50 x 10⁵
• 5 x 10^-4
• 5 x 10³
• .5 x 10³

Army tank tracks are useful for travelling through the mud because..

• they decrease the force the vehicle exerts on the ground
• they increase the force the vehicle exerts on the ground
• they decrease the pressure the vehicle exerts on the ground
• they increase the pressure the vehicle exerts on the ground

What kind of energy is represented in the picture?

• Thermal
• Chemical
• Sound
• Nuclear

Tags

NGSS.MS-PS3-4

At what temperature does water freeze in degrees Fahrenheit?

• 212 degrees
• 100 degrees
• 32 degrees
• 0 degrees

A 2 kg cart has a momentum of 10 kg m/s. What is its velocity?

• 22 m/s
• .2 m/s
• 5.0 m/s
• 20 m/s

Tags

NGSS.HS-PS2-2

What is vaporization?

• a liquid becoming a gas
• a gas becoming a liquid
• a liquid becoming a solid
• a gas becoming a solid